Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
160024goodexcellent51excellent
150029goodexcellent51excellent
140031goodexcellent51excellent
130032goodexcellent61excellent
120030goodexcellent51excellent
110030goodexcellent51excellent
100030goodexcellent51excellent
090032goodexcellent51excellent
080034goodexcellent51excellent
070034goodexcellent51excellent
060033goodexcellent51excellent
050028goodexcellent41excellent
040030goodexcellent51excellent
030035goodexcellent51excellent
020028goodexcellent41excellent
010026goodexcellent41excellent
000023goodexcellent41excellent
230027goodexcellent51excellent
220032goodexcellent61excellent
210031goodexcellent51excellent
200033goodexcellent61excellent
190041lightly pollutedexcellent71excellent
180044lightly pollutedexcellent81excellent
170036goodexcellent71excellent